Portable computer



FIG. 1 is a perspective view showing our new design for a portable computer;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view showing the stretched portable computer. 

The ornamental design for a portable computer, as shown and described. 